Attachable brace for a mouthguard



FIG. 1 is a side perspective view of an attachable brace for a mouthguard showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom view being a mirror image; and,

FIG. 5 is an end elevational view thereof, the opposite side being a mirror image.

The mouthguard shown in broken lines in FIG. 1 is shown for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an attachable brace for a mouthguard, as shown and described. 